The Virtual Router Redundancy Protocol (VRRP) enables hosts on a LAN to make use of redundant routing platforms (master and backup pairs) on the LAN, requiring only the static configuration of a single default route on the hosts.
The VRRP routing platform pairs share the IP address corresponding to the default route configured on the hosts. At any time, one of the VRRP routing platforms is the master (active) and the others are backups. If the master fails, one of the backup routers or switches becomes the new master router.
